I find most strains are capable of cash cropping, just gotta run clones typically to get steady results.
That being said, power kush by dinafem was super potent, skunky, very dense buds with little trimming needed.
Goji og the same but much better flavor and high
Both my phenos of tangerine power yield nicely
Grape god by next generations was solid back in 2009
Sour kosher by dna did well for me
grapes 13 by hazeman
c99 by peakseedsbc has the best bud to leaf ratio I've had in a while
cookies and chem by green point again is stacking nicely.
Just stay away from big bud, lol.